NAVIGATION SYSTEM(for HDD) Sound Quality is Bad Only when Disc is Played (Volume is Too Low)

PROCEDURE


  1. REPLACE DISC AND RECHECK


    1. Replace the disc with a known good one.

    2. Check that the malfunction disappears.

      Result
      Proceed to
      Malfunction disappears
      Malfunction does not disappear

    Malfunction disappears
    Malfunction does not disappear